Edward wright



(No Model.) v

' E. WRIGHT.

GOVERNOR VALVE. No. 324,446. Patented Aug; 18, 18855 EH5. Photo-Lithographer. Walhingtun, D C.

UNITED STATES PATENT OFFICE.

EDWARD WRIGHT, OF WORCESTER, MASSACHUSETTS, ASSIGNO-R TO THE WVRIGHT MACHINE COMPANY, OF SAME PLACE.

GOVERNOR-VALVE.

SPECIFICATION forming part of Letters Patent No. 324,446, dated August 18, 1885.

(No model.)

To all whom it may concern.-

Be it known that I, EDWARD WRIGHT, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Governor-Valves; and I declare the following to be a description of my said invention sufficiently full, clear, and exact to enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

The object of my present invention is to provide a valve mechanism for governors wherein the valve is coupled to its operating spindle or stem by aloose connecting-piece in a manner to allow limited lateral movement of the valve independently of its spindle while closely confined to rotate with said spindle, thereby permitting the self-adjustment of the valve in a degree suffi'cient to obviate any cramping or binding action in case the valve-seat and spindle are not perfectly concentric and parallel with each other, and also adapting the mechanism for operating with the least possible amount of friction, so that the valve can be readily and freely actuated by a light-running governor, or with the exertion of but slight force, thus producing a more sensitive and quicker acting mechanism. This object I attain by the mechanism herein shown and, described.

Figure 1 is a central section of a governorvalve mechanism constructed in accordance with my invention. Fig. 2 is a transverse section of the same. Figs. 3 and 4 are views showing the detail of the valve-piece. Figs. 5, 6, and 7 are views showing the details of the coupling-piece, and Figs. 8 and 9 show the side and end of the valve-spindle.

In referring to parts, A denotes the body,

. shell, or casing, which is provided with suitable passages, a a, with bosses for attachment of the steam-pipes, and with an annular chamber, A separated from the interior or valve chamber by the cylindrical valve-seat B, having ports 12 leading from said annular chamber to the interior chamber. 7

0 indicates the valve, which is formed, as shown, with open ends and sides, and having bars 0, of proper number and dimensions for covering and closing the several ports I). Said valve is fitted to work freely within the seat 13, and is mounted upon a central stem or spindle, E, to which it is connected by an interlocking coupling-piece, D, in a manner to permit limited lateral movement of the valve, or diametric self-adjustment,to an extent sufficient to give freedom of action within the seat, while it is confined rotatively, so as to move with the action of the spindle E.

The coupling-piece D is made as shown in Figs. 5, 6, and 7, and is arranged between the valve and spindle, with its radial projections d engaging with recesses c at one end of the valve 0, while at the opposite end the bifurcated arms (2 of the coupling embrace the cross-head e of the valve-spindle E. The radial relation of the engaging parts 01 c and d e is at right angle to each other, or nearly so. These interlocking lugs and recesses are fitted in a manner to prevent independent rotative movement between the parts,while permitting slight lateral movement, so that the valve can assume positions in a slight degree inclined or eccentric to the axis of thespindle. The valve is confined longitudinally between the projections d and the ends of the cross-head e.

The valve-spindle E may be made with a long outward taper and fitted without packing to work in a correspondingly long tapered bearing sleeve or bushing, F, screwed into the face-plate of the casing A, while an adjustable step or screw, H, is arranged for supporting its end and adjusting it against the action of steam-pressure from within, thus forming a steam-tight joint of the nature describedin my Letters Patent N 0. 298,049.

The spindle E is connected by suitable device, I, at the exterior of the case with the reciprocating rod K, controlled by governor mechanism of any suitable construction, (such, for instance, as that described in my Letters Patent No. 283,842,) whereby the said spindle and valve are actuated for opening and closing the ports b and regulating the flow of steam through the apparatus.

By constructing and arranging the valve de 'vices as above described cramping or binding of the parts in action is obviated, and the friction is reduced to an inappreciable minimum, so that the valve can be operated by a light-running sensitive governor.

What I claim as of my invention, to be secured by Letters Patent, is--- 1. A valve mechanism having a cylindrical valveseat, a central operating spindle or valve-stein, and a cylindrical valve connected with said spindle by anintermediate couplingpiece arranged substantially as set forth, whereby lateral selfadjustment of the valve is permitted, while it is rotatively confined to move with said spindle.

2. The combination, with the valveseat B and spindle E, of the valve 0 and the coupling-piece D, having lugs for engaging said EDWVARD \VBIGHT.

Vitnesses:

CHAS. H. BURLRIGH, WM. PATIIIE. 

